Since animals don't get married and H. sapiens are polygamous, is marriage less natural than ity?

okay, even though technically humans are animals, we don't not have instinct, but we have critical thinking capacity. It is better for humans to have one mate for many reasons such as for good physical health , mental health and emotional health. As for marriage being less natural than uality, I don't see the comparison. ity is ones ual attraction to the same . Marriage is a social, religious, spiritual or legal union of individuals that creates kinship. For something to be natural it needs to be part of life. Both are part of life. God made us who we are either heteroual or ual. As for having more then one spouse, who would want the extra work?